I like the 154 Horn in my M70 Fwt
50.5-51/I4350 will be a sweet spot..get the best load and then fool with seating depth.
Contrary to Goose, mine likes it close .oo4-.005 off.
53.5/R19/160NP also likes it close.. .004 off
No experience with R22 or AB's, but 2 here like it and you have R22. So for me I would start like Goose says, get the best load, and work the depth with .005 increments.
For some reason I seem to have more trouble developing good loads in the 7mm's, and for me that is the 7-08, 280, 7x57, and the 7Mag.
